SKU: RC26601
UPC: 076683266019
MPN: 26601
The RCBS Full Length Die Set for the 7mm STW cartridge is a precision two-die reloading system engineered to bring bottleneck cases to exact SAAMI minimum dimensions. This Group A popular rifle cartridge die set includes a full-length sizer die with integrated expander-decapping unit and a seater die with bullet seater plug, delivering the dimensional consistency required for match-grade rifle ammunition production.
The full-length sizer die performs three critical functions simultaneously: it sizes the external case dimensions to specification, removes spent primers through the decapping pin, and expands the case neck to accept the next bullet. Integral vents prevent case damage from trapped air and excessive lubricant—a detail that separates precision reloading equipment from entry-level alternatives. Headspace is held to minimum tolerances, avoiding the case growth that degrades accuracy and barrel life over repeated reload cycles. The seater die portion ensures consistent bullet seating depth and concentricity, critical variables for velocity uniformity and shot grouping consistency.
This die set addresses the 7mm STW, a high-volume magnum rifle cartridge popular in long-range precision shooting, competitive benchrest, and custom rifle builds. Reloaders working with the STW platform require tooling that maintains case longevity and dimension consistency—the expanded case capacity and pressure dynamics of magnum cartridges demand equipment-grade precision. RCBS full-length die sets are standard in serious handloading operations where ammunition repeatability directly impacts rifle performance.
Designed for use with standard reloading presses and progressive reloading machines, this die set integrates seamlessly into established reloading workflows. Whether loading for barrel break-in, load development, or precision match ammunition, the 7mm STW die set provides the dimensional control required to extract consistent performance from modern rifle platforms.
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